CO General Contractor Class B Exam
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. CO General Contractor Class B Exam – Question 1
Which construction document typically governs the contractor’s obligations,
rights, and responsibilities?
A. Specifications
B. Plans
C. Contract
D. Addenda
Rationale: The contract is the legally binding document outlining
obligations, rights, and duties for all parties.
2. CO General Contractor Class B Exam – Question 2
The allowable building height for a Type IIA building is determined
primarily by:
A. Number of exits
B. Interior finish
C. Occupancy classification and construction type
D. Fire watch personnel
,Rationale: Building height limits depend on occupancy group and
construction type per code.
3. CO General Contractor Class B Exam – Question 3
Which soil type has the highest potential for expansion?
A. Sand
B. Gravel
C. Silt
D. Clay
Rationale: Clay soils absorb moisture and expand more than sands, silts, or
gravels.
4. CO General Contractor Class B Exam – Question 4
Who is responsible for site safety during construction?
A. Owner
B. Architect
C. Contractor
D. Building inspector
Rationale: OSHA and contract law place primary site safety responsibility
on the contractor.
5. CO General Contractor Class B Exam – Question 5
A change order must include all EXCEPT:
A. Scope clarification
B. Cost adjustments
C. Time adjustments
D. Contractor licensing number
Rationale: Licensing numbers are not required components of a change
order.
, 6. CO General Contractor Class B Exam – Question 6
Which material is most appropriate for load-bearing exterior walls in Class B
buildings?
A. Aluminum
B. Glass
C. Concrete masonry units
D. Vinyl
Rationale: CMU provides strength and fire resistance appropriate for Class
B construction.
7. CO General Contractor Class B Exam – Question 7
What is the primary purpose of a footer (footing)?
A. Retain soil
B. Transfer building loads to the soil
C. Support roof loads
D. Prevent wind uplift
Rationale: Footings distribute structural loads to the ground.
8. CO General Contractor Class B Exam – Question 8
A building permit becomes invalid if work does not start within:
A. 30 days
B. 60 days
C. 180 days
D. 1 year
Rationale: Most jurisdictions, including Colorado municipalities, follow a
180-day inactivity rule.
9. CO General Contractor Class B Exam – Question 9
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. CO General Contractor Class B Exam – Question 1
Which construction document typically governs the contractor’s obligations,
rights, and responsibilities?
A. Specifications
B. Plans
C. Contract
D. Addenda
Rationale: The contract is the legally binding document outlining
obligations, rights, and duties for all parties.
2. CO General Contractor Class B Exam – Question 2
The allowable building height for a Type IIA building is determined
primarily by:
A. Number of exits
B. Interior finish
C. Occupancy classification and construction type
D. Fire watch personnel
,Rationale: Building height limits depend on occupancy group and
construction type per code.
3. CO General Contractor Class B Exam – Question 3
Which soil type has the highest potential for expansion?
A. Sand
B. Gravel
C. Silt
D. Clay
Rationale: Clay soils absorb moisture and expand more than sands, silts, or
gravels.
4. CO General Contractor Class B Exam – Question 4
Who is responsible for site safety during construction?
A. Owner
B. Architect
C. Contractor
D. Building inspector
Rationale: OSHA and contract law place primary site safety responsibility
on the contractor.
5. CO General Contractor Class B Exam – Question 5
A change order must include all EXCEPT:
A. Scope clarification
B. Cost adjustments
C. Time adjustments
D. Contractor licensing number
Rationale: Licensing numbers are not required components of a change
order.
, 6. CO General Contractor Class B Exam – Question 6
Which material is most appropriate for load-bearing exterior walls in Class B
buildings?
A. Aluminum
B. Glass
C. Concrete masonry units
D. Vinyl
Rationale: CMU provides strength and fire resistance appropriate for Class
B construction.
7. CO General Contractor Class B Exam – Question 7
What is the primary purpose of a footer (footing)?
A. Retain soil
B. Transfer building loads to the soil
C. Support roof loads
D. Prevent wind uplift
Rationale: Footings distribute structural loads to the ground.
8. CO General Contractor Class B Exam – Question 8
A building permit becomes invalid if work does not start within:
A. 30 days
B. 60 days
C. 180 days
D. 1 year
Rationale: Most jurisdictions, including Colorado municipalities, follow a
180-day inactivity rule.
9. CO General Contractor Class B Exam – Question 9
